| Titles |
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English :
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Efficacy of barley malt in improving the utilization of broiler diets
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Arabic :
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كفاءة مولت الشعير فى تحسين الاستفادة من علائق بدارى التسمين
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| Abstract |
The objective of this study was to evaluate the effect of barley in improving the utilization of broiler diets. In this study, a total of 240 unsexed one day old Ross broiler chicks were distributed and divided equally Into eight -experimental groups nearly equal in average live weight. Each group was represented by 30 birds in three , replicate pens of 10 chicks each and kept under similar management conditions. A 4 x 2 factorial design was used in this experiment using 4 of barley malt (0. 2.5. 5.0 and 7.5% of the diet. In expense of the corn) in each of two diets. The first diet contained the strain catalog recommendation of energy (RE), while the second diet contained low energy level (LE). All diets were formulated to meet other nutrient requirements of the chicks according to the strain catalog recommendation.
The chemical analysis of barley malt showed that it had a good nutritive value. On air dry basis. it contained 4.16% moisture. 95.84% DM. 94.1% OM 8.19% CP 2.65% EE, 4.12% CF. 79.14% NFE and 3899 kca1/kg ME.
It is rich in minerals (ppm). especially: Total P (3100), K (2500) and Fe 1500. Barley malt. In comparison to the corn It contained more amounts of all essential amino acids, except leucine and histidine which were the first limiting amino acid (0.67), and the second limiting amino acid (0.91),respectively. Both BW and BWG were Improved (P < 0.05) for LE diets when compared to RE diets up to 28 days of age, Regardless of dietary energy.
The improving effect of barley malt was between 10-28 days of age due to the level of 7.5% barley malt (7.81% increase in BWG as compared to 0% barley malt), the effect decreased after 28 days of age. Addition of barley malt to the LE diets Increased FI when compared with those at same levels in RE diets , while FC values were improved when barley malt was added either to the RE or LE diets, during the total period The European (Production Efficiency Index (EPEI) values of LE diets supplemented with barley malt, especially at 7.5% were better than the control of RE diet. Carcass characteristics and immune organs (spleen; bursa and thymus) values were not adversely affected by the treatments. Addition of barley malt decreased abdominal fat pad (AFP). values gradually, especially when added to LE diets. There was no clear trend In digestibility coefficients values due treatments, except for EE and NFE which were increased numerically due to addition of barley malt, the best values were for 7.5% barley malt when added to LE diets. Results indicated that LE diets lowered total feed cost/kg BW and improved net revenue and economic efficiency compared to RE diets. Barley malt lowered total feed cost/kg BW, improved net revenue and economic efficiency compared to the control (without malt). Addition of barley malt to LE diets at all levels; especially at 7.5% lowered total feed cost/kg BW, improved net revenue and economic efficiency compared to the control of RE diets.
It is concluded that addition of barley malt at 7.5% of the diet resulted in the best broiler performance, meat quality and economic efficiency and it is suggested to carry out further studies using higher levels. .
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| Publication year |
2007
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| Pages |
101-119
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| Availability location |
معهد بحوث الانتاج الحيوانى-شارع نادى الصيد- الدقى- الجيزة
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| Availability number |
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| Organization Name |
Animal Production Research Institute (APRI)
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| City |
الاسكندرية
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| serial title |
Egyptian Poultry Science
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| ISSN |
1110-5623
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| Author(s) from ARC |
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| Agris Categories |
Animal feeding
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AGROVOC
TERMS |
Barley.
Broiler chickens.
Malt.
Uses.
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| Proposed Agrovoc |
improving broiler diets;
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| Publication Type |
Journal
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